Well done it's typical Thai immagration but if you follow the steps it's not that bad saved you going out and also saved cost. Even if you are a single traveller it is still wat more than 1900 bht and 2 days to do border run.
Just go into the immagration office how hard can it be. Wouldn't trust the post for this important task. First time in person after that online no stress
never heard anyone posting what paperwork they have tried to present to the bank. I believe they dont want to go to the trouble as this person has. They just want to go to agent but surprise surprise agents can't anymore. Lazy uninformed farang just like they say can't get a car license use an agent don't believe these people. Sorry mate l haven't had any issues with either yes you may have to chase some other paper but it's possible if you work with the responsible office
better talk to accountant if you want specific information about this everyone's circumstance is different it's not a one size fits all. Don't listen to fb or other social media just people having their own interpretation